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Fix deprecatedCompat create/updateConstructorDeclaration functions #50260

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Fix deprecatedCompat create/updateConstructorDeclaration functions #50260

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4 changes: 2 additions & 2 deletions src/deprecatedCompat/4.8/mergeDecoratorsAndModifiers.ts
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Expand Up @@ -535,7 +535,7 @@ namespace ts {
(decorators === undefined || !some(decorators, isModifier)) &&
(modifiers === undefined || !some(modifiers, isParameter)) &&
(parameters === undefined || isArray(parameters)) &&
(body === undefined || !isBlock(body)),
(body === undefined || isBlock(body)),
})
.deprecate({
1: DISALLOW_DECORATORS
Expand Down Expand Up @@ -563,7 +563,7 @@ namespace ts {
(decorators === undefined || !some(decorators, isModifier)) &&
(modifiers === undefined || !some(modifiers, isParameter)) &&
(parameters === undefined || isArray(parameters)) &&
(body === undefined || !isBlock(body)),
(body === undefined || isBlock(body)),
})
.deprecate({
1: DISALLOW_DECORATORS
Expand Down
23 changes: 23 additions & 0 deletions src/testRunner/unittests/factory.ts
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Expand Up @@ -81,5 +81,28 @@ namespace ts {
checkRhs(SyntaxKind.QuestionQuestionEqualsToken, /*expectParens*/ false);
});
});

describe("deprecatedCompat/mergeDecoratorsAndModifiers", () => {
it("supports deprecated createConstructorDeclaration/updateConstructorDeclaration functions", () => {
const body = factory.createBlock([]);
const ctor = factory.createConstructorDeclaration(
/*decorators*/ undefined,
/*modifiers*/ undefined,
/*parameters*/ [],
/*body*/ body,
);

const newBody = factory.createBlock([]);
const updatedCtor = factory.updateConstructorDeclaration(
ctor,
/*decorators*/ ctor.decorators,
/*modifiers*/ ctor.modifiers?.filter(isModifier),
/*parameters*/ ctor.parameters,
/*body*/ newBody,
);

assert.strictEqual(updatedCtor.body, newBody);
});
});
});
}